package org.csmzxy;

public class Example03 {
    public static void main(String[] args){
        int i = 20;
        long l = i;
        float f = 1;
        double d = f;
        System.out.println("long类型变量1:"+1);
        System.out.println("float类型变量f:"+f);
        System.out.println("double类型变量d:"+d);
    }
}
